3/4 X 10= $7.50
Because 3/4 is 75%, 10 is the original price.  And 75% times 10 is 7.50<span />
        
             
        
        
        
Answer:
16,20
Step-by-step explanation:
As shown, you add four by each.
4+4=8
8+4=12
So, 12+4=16
16+4=20
 
        
                    
             
        
        
        
Answer:
The volume of the resulting cylinder is 385 cm³
Step-by-step explanation:
The formula of the rule of a cylinder is V = π r² h, where
- r is the radius of its base
<em>When a rectangular paper folded to form a cylinder, then one of its dimension will be the circumference of the base and the other dimension will be the height of the resulted cylinder</em>
∵ ABCD is a rectangle
∵ It is folded where AB coincides with DC
∴ AB is the height of the resulted cylinder
∴ BC is the circumference of the base of the resulted cylinder
∵ AB = 10 cm
∴ h = 10 cm
∵ BC = 22 cm
∴ The circumfrence  of the base = 22 cm
∵ The circumference of a circle = 2 π r
→ Equate the rule by 22 to find r
∴ 2 π r = 22
∵ π = 
∴ 2 ×  × r = 22
 × r = 22
∴  r = 22
 r = 22
→ Divide both sides by 
∴ r = 3.5 cm
→ Use the formula of the volume above to find the volume of the cylinder
∵ V =  × (3.5)² × (10)
 × (3.5)² × (10)
∴ V = 385 cm³
∴ The volume of the resulted cylinder is 385 cm³
 
        
             
        
        
        
Answer: 36%
Step-by-step explanation:
just add % 
 
        
                    
             
        
        
        
Answer: a. 12.4 years
Step-by-step explanation:
Function to represent exponential growth continuously:
 ...(i)
  ...(i)
, where  = initial amount, r= rate of interest ( in decimal) , A = Amount after t years.
 = initial amount, r= rate of interest ( in decimal) , A = Amount after t years.
As per given , we have

To find : t
Put all values in (i) , 

Taking natural log on both sides 

Hence, it would take <u>12.4</u> years.
so, the correct option is a. 12.4 years .